Severing device.



R. E. ROSBWARNE. SEVERING DEVICE.

APPLIOATIOH FILED JULY 18, 1911.

1,095,599. Patented May 5, 1914.

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' R. E. ROSEWARNE.

SEVERING DEVICE.

APPLICATION FILED JULY 18,1911.

Patented May 5, 1914.

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SEVERING DEVICE.

APPLICATION FILED JULY 18,1911.

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COLUMBIA PLANOGRAPH c0.-. WASHINGTON, D. c.

WETED STATES PATENT @FFEQE.

RICHARD E. ROSEVV'ARNE, OF GOVINGTON, KENTUCKY, ASSIGNOR TO THE MILLER,

DU BRUL AND PETERS MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A COB- PORATION OF OHIO.

SEVERING DEVICE.

'1 b all whom it may concern Be it known that I, RICHARD E. Rosn wxnxn, a citizen of the United States, residing in the city of Covington, county of Kenton, and state of Kentucky, have in vented certain new and useful Improvements in Severing Devices, of which the following is a specification.

T his invention relates to severing devices in which an object or material manufactured in continuous form or in long lengths, has to be subdivided to produce individual articles, and particularly to that class of such devices in which the object to be subdivided is fed constantly past a cutting point at which the line of feed is intersected by a knife.

Some of the essential characteristics of a successful severing device of the kind referred to, are that the severing stroke shall be made at rapidly recurring uniform intervals; that severing shall take place without interrupting the feed of the object from which the article is being severed, thus necessitating movement of the knife with the object during intersection of the line of feed; and that the severing take place without injuring the object, which is in some cases of delicate structure, for which purpose the cutting stroke is accompanied by rapid edge movement of the knife itself.

Severing devices heretofore constructed, have been made upon the principle of a lever carrying the severing knife mounted to receive a cutting stroke to and from the line of feed and a movement in the direction of feed, besides carrying the necessary driving connections to impart edge travel to the severing knife. This has resulted in considerable complication and in view of the high momentum to be overcome in rapidly reversing the direction of movement, has necessitated more or less heavy construction.

My invention attains all of the desired objects by a construction which is very simple and in which the severing knife alone receives the cutting stroke to and from the line of feed, so that great lightness and rapidity of action are attainable.

One feature of the invention consists in developing the cutting stroke by a continuous orbital movement of the knife, whereby the shock of reciprocating movement is done away with.

Specification of Letters Patent.

Application filed July 18, 1911.

Patented May 5, 1914.

Serial No. 639,102.

knife alone with its immediate or subsidiary shaft, execute this orbital movement, while the mounting in which the shaft of the knife is eccentrically journaled, revolves about and reciprocates in the line of its true axis so that the principal mass of the moving parts is balanced.

A further feature consists in developing the edge movement of the knife, about the subsidiary axis, from the orbital revolution of the knife as a whole, this being conveniently accomplished by providing the immediate or subsidiary shaft of the knife with a pinion which tracks around a. fixed gear during the revolution of the knife and thus develops rotation in the knife.

A further feature consists in developing the reciprocation of the cutter in the line of feed, from the rotation of the balanced mounting about the main axis, this being conveniently accomplished by providing said rotating mounting with a co-axial cam engagin a stationary projection or projections, preferably in the form of a conical roller rotating upon a fixed axis presented radially to the cam and having the cam de signed with its pitch extending in the direction of its axis.

Further features relate to the construction of the several parts whereby they may be conveniently assembled in exact relation, as

well as adjusted when necessary to compensate for wear or introduction of changed dimensions in some of the parts, as for instance the severing knife or the driving gear whose ratio to the other parts determines the number of cutting strokes in proportion to the feed of the machine.

One of the uses to which a severing device of the kind described may be put, is cutting off the individual cigarettes from the cigarette rod in a continuous cigarette machine. An illustrative embodiment of the invention designed for such a use is disclosed in the accompanying drawings, in

' which,

Figure 1 is a top plan view, Fig. 2 a side elevation,Fig. 3 a rear end elevation, and Fig. 4 a front elevation of the complete severing device; Figs. 5 and 6 are views taken at right angles to each other of the support for the object to be cut; and Fig. 7 is a longitudinal section of the revolving and axially reciprocating mounting for the knife and cutting tube, the section being taken in a. plane extending through the main axis of revolution of the parts and through the subsidiary axis of rotation of the knife.

In the embodiment selected for illustration, the table 1 carrying a known form of delivery tube 2 for the severed cigarettes, is likewise provided with a carriage 3 for the severing knife -1 and cutting tube 5, as well as their supporting and operating parts; said carriage being guided upon the table by a tongue 6 which maintains the table in true alinement with the line of feed when adjusted transversely of the table to com pensate for wear of the severing knife and insure intersection of the line of feed by the knife; such transverse adjustment being accurately effected by a hand screw 7, and the cutting tube 5 being adjusted inward on its mounting as the carriage is adjusted outward, to maintain the cutting tube in the line of feed, represented in the present instance by the tape wheel 40 and the dis charge tube 2; said carriage being interlocked. with the table at any point of adjustment by bolts 8 extending through the carriage and working in slots 8 in the table.

As will be understood more clearly from Figs. 3 and 1, it is necessary to have the knife 4 intersect the line of feed represented by the tubes 2 and 5 at rapidly recurring and accurately measured intervals. For this purpose, the knife 1 is mounted eccentrically to a center of revolution 0 and is made to revolve about that center in a continuous orbital path so that at each revolution, it enters and leaves the path 2 defined by the tube. It is also important that the knife 4:, in addition to this orbital travel, receive rapid edge movement or travel upon its own' axis, for which purpose, the knife is mounted to rotate with its eccentrically disposed shaft 9 and is provided with a pinion 10 concentric with the axis 9, which meshes with the internal gear 11 on a non-rotating head 12. It is further essential, to avoid interrupting the feed of the object to be cut, that the knife 4 travel in the direction of its axis, with the object, so long as the knife is intersecting the line of feed. This necessi tates an axial reciprocation of the knife and its associated parts, as well as the cutting tube 5. To insure the several functions ascribed to the knife and its associated parts, it is mounted as follows.

The carriage 3 supports a yoke 13, con structed with bearings 14, 1 1 for the shaft 15, preferably tubular for lightness, mounted to revolve and also to axially reciprocate in said bearings; said shaft 15 having eccentrically disposed bearings 9 to receive the shaft 9 of the knife a secured therein by lock nuts 9 at the rear end of said shaft; also a driving pinion 16, hereinafter called change gear, meshing with idler gear 17, which is driven by a master gear 18 on the main shaft 19; said shaft 15 is further provided with a cam 20 coaxial with the shaft, with its pitch constructed in the direction of the axis of the shaft and. co-acting with a pair of stationary rollerprojections 21 fixed by set screws 21 in the yoke 13 so that as the cam 20 revolves, an axial reciprocation is imparted to the shaft 15 hearing a proper relation to the time during which the line of feed is intersected by the knife. The pinion 16 is in clutched abutment with the cam 20, as suggested by dotted lines in Fig. 7, and is thereby in driving relation with said cam and through it with the shaft 15. It is called a change gear because a series of such pinions of different diameters are interchangeably adapted to the shaft 15 in order that the period of rotation of the shaft, and therefore of the cutting stroke of the knife 4, may be varied at will to suit the feed of the article to be severed and to regulate the length of the severed articles. To admit pinions 16 of different sizes, idler 17 is adjustable to and from the axis 0, by means of a supporting arm 17 pivoted at 17 to carry the stub shaft 17 for said idler, and adjustably held by the bolts 1'7 working in slots 17*, in the said supporting arm of the machine. The pinion 16 is axially elongated so that notwithstanding the axial reciprocation of said pinion with the shaft 15, said pinion will retain its driven relation to the non-reciprocating idler 17; and said pinion may be lightened in construction, if desired, by having its difierent peripheral portions, as suggested in Fig. 2, offset-in the direction of the axis so that each particular portion will com-e into the plane of the idler as it comes into mesh therewith.

The non-rotating head 12 is supported on the shaft 15 so as to be reciprocated thereby, but is held against rotation by means of the anchoring pin 12?. parallel to the axis of the shaft 15; said pin being fixed in said head but sliding in and out in a. bore 12 in the yoke 13. The cutting tube 5 is likewise supported from the shaft 15, indirectly through means of the non-rotating but reciprocating head 12, which is constructed with a seat 19 for the bracket 5 of said tube As will be seen from Figs. 1, 5 and 6, the tube 5 is divided into two oppositely flaring parts 5 5 to admit the knife between them, secured in a casting 5 by set screws 5 said. casting being secured on the bracket- 5, by a bolt 5 working in slot f (Figs. 1 and 5) adjustably to and from the axis 0 in order to compensate for changes in diameter of knife, incident to wear, regrinding or sub stitution of knife.

The assembly of the shaft 15 with the parts mounted to reciprocate therewith, as well as those which both revolve and reciprocate with it, will be best understood upon reference to Fig. 7, from which it will be seen that the non-rotating head 12 with its sleeve 12, is first slid over the shaft until arrested by the front shoulder 15*, after which a wearing washer 12 in clutched connection with the sleeve 12, and therefore held against rotation by said sleeve, is placed in position to receive abutment of the annular confining nut 15", which is adapted to confine the head 12 against axial movement on the tubular shaft 15 without interfering with the rotation of the shaft within the sleeve 19 of the head. Next is placed the cam 20, fixed by a key 20*, against rotation on the tubular shaft 15 and abutting against the nut 15". The axially offset or elongated pinion 16 is then placed in position upon shaft 15, with a clutched face interlocked with a similarly constructed face on the cam 90, which holds said pinion against rotation on shaft 15. Then is placed the confining sleeve 15 in abutment with the pinion 16 and this in turn is secured by a clamp nut 15 on the end of the shaft. The parts thus assembled on the shaft 15 are rigidly held in compact column, so that all will reciprocate longitudinally, together, but so that the shaft 15, together with the cam 20, driven by the pinion 16, will rotate together in addition to reciprocatin but without rotating the head 12.

As clearly shown in Fig. 7 the parts which revolve and longitudinally reciprocate, are symmetrically disposed about the main axis of revolution 0, with the exception of the knife 4:, its shaft 9 and its pinion 10, so that the momentum of parts to be overcome in moving to and from the line of feed is greatly reduced over an organization of parts wherein all of the parts are mounted to swing to and from the feed line at each cutting stroke; moreover, the continuous orbital path of the knife resolves the force to be overcome, into a uniform centrifugal force, which reduces the jar and vibration to a minimum. In addition to these advantages, the orbital path of the knife causes the knife to approach the object to be cut at a relatively low angle which produces the most advantageous incision when dealing with delicately constructed objects.

I claim 1. A severing device comprising a knife, a mounting for said knife having a rotation continuing in one direction about its own axis but having the knife supported thereon eccentrically to the axis of rotation of said mounting and thereby developing a continuing orbital movement in said knife; means reciprocating said mounting in the line of its axis of rotation during its said rotation,

and a bearing memberfor said mounting reciprocating with said mounting but not partaking of its rotation.

2. A severing device comprising a knife, a mounting for said knife having a rotation continuing in one direction about its own axis but having the knife supported thereon eccentrically to the axis of rotation of said mounting and thereby developing a continuing orbital movement in said knife; means reciprocating said mounting in the line of its axis of rotation during its said rotation, and a bearing member for said mounting reciprocating with said mounting but not partaking of its rotation; said bearing member being also provided with a circular gear, concentric with the orbital path of the knife, and said knife being provided with a gear intermeshing with said mounting gear and transmitting rotation to the knife on its own axis, during its said orbital movement.

3. In a severing device, a continuing revolving mounting, a knife mounted to rotate on said mounting upon an axis eccentric to the axis of rotation of said mounting, whereby the knife travels in a continuing orbital path in addition to its rotation, a pinion in driving relation to the knife, partaking of the orbital travel of the knife, and a circular gear concentric with the orbital path of the knife and with which the pinion of the knife meshes.

4. In a severing device, a continuing revolving mounting, a knife mounted to rotate on said mounting upon an axis eccentric to the axis of rotation of said mounting, whereby the knife travels in a continuing orbital path in addition to its rotation, a pinion in driving relation to the knife, partaking of the orbital travel of the knife, and a circular gear concentric with the orbital path of the knife and with which the pinion of the knif meshes; means being provided for imparting axial reciprocation to said mounting with the knife thereon and also to the circular gear, simultaneously with the orbital movement of the knife.

5. In a severing device, a continuing revolving mounting, a knife. mounted to rotate on said mounting upon an axis eccentric to the axis of rotation of said mounting, whereby the knife travels in a continuing orbital path in addition to its rotation, a pinion in driving relation to the knife, partaking of the orbital travel of the knife. and a circular gear concentric with the orbital path of the knife and with which the pinion of the knife meshes; means being provided for imparting axial reciprocation to said mounting with the knife thereon and also to the circular gear, simultaneously with the orbital movement of the knife, and means being also provided to prevent rotation of said circular gear without resisting its reciprocation.

all:

6. In a severing device, a continuing revolving mounting, a knife mounted to rotate on said mounting upon an axis eccentric to the axis of rotation of said mounting, whereby the knife travels in a continuing orbital path in addition to its rotation, a pinion in driving relation to the knife, partaking of the orbital travel of the knife, and a circular gear concentric with the orbital path of the knife and with which the pinion of the knife meshes; means being provided for imparting axial reciprocation to said mounting with the knife thereon and also to the circular gear, simultaneously with the orbital movement of the knife, and means being also provided to prevent rotation of said circular gear without resisting its reciprocation comprising a sleeve carrying said circular gear, surrounding said revolving mounting and reciprocating therewith but held against revolving therewith.

7. In a severing device, a continuing revolving mounting, a knife mounted to rotate on said mounting upon an axis eccentrio to the axis of rotation of said mounting, whereby the knife travels in a con tinuing orbital path in addition to its rotation, a pinion in driving relation to the knife, partaking of the orbital travel of the knife, and a circular gear concentric with the orbital path of the knife and with which the pinion of the knife meshes; means being provided for imparting axial reciprocation to said mounting with the knife thereon and also to the circular gear, simultaneously with the orbital movement of the knife, and means being also provided to prevent rotation of said circular gear without resisting its reciprocation comprising a sleeve carrying said circular gear, surrounding said revolving mounting and reciprocating therewith but held against revolving therewith, there being a thrust bearing between said sleeve and said knife mounting.

8. In a severing device, a shaft having 7 continuing rotation about its axis, a knife carried by said shaft, and rotatable upon an axis parallel with but eccentric to the axis of rotation of said shaft and having continuing complete revolution about the axis of the shaft, a non-rotating head having a sleeve surrounding said shaft, a gear carried by said head concentric with the axis of revolution of the knife and a pinion carried by the knife meshing with said gear.

9. In a severing device, a shaft having continuing rotation about its axis, a knife carried by said shaft, and rotatable upon an axis parallel with but eccentric to the axis of rotation of said shaft and having continuing complete revolution about the axis of the shaft, a non-rotating head having a sleeve surrounding said shaft, a gear carried by said head concentric with the axis of revolution of the knife and a pinion carried by the knife meshing with said gear; said sleeve having an external bearing in which it reciprocates and having its interior constructed to afford a journal bearing for said shaft.

10. An axially reciprocating mounting shaft, having continuing rotation in one direction, a non-revolving head, a sleeve carrying said head surrounding said shaft and reciprocating with the shaft, means holding the head against revolution, a cutter tube supported by said head, and a knife having continuous revolution With said shaft in one direction mounted on said shaft eccentrically to the axis of revolution, and developing thereby a continuing orbital path, in tersecting the line of the cutter tube.

11. An axially reciprocating mounting shaft, having continuing rotation in one clirection, a non-revolving head, a sleeve car-- rying said head surrounding said shaft and reciprocating with the shaft, means holding the head against revolution, a cutter tube supported by said head, and a knife having continuous revolution with said shaft in one direction mounted on said shaft eccentrically to the axis of revolution, and developing thereby a continual orbital path, intersecting the line of the cutter tube, gearing being provided between said head and the knife for developing from the orbital revolution, rotation in the knife on its own axis.

12. In a severing device, means establishing the line of feed for an object to be cut, a carriage, a shaft having continuing revolution in one direction and also axial reciprocation on said carriage, a head mounted on said shaft, reciprocating therewith but having means holding it against revolution with the shaft, a circular knife eccentrically mounted on the shaft and caused thereby to travel in a continuing orbital path in one direction and also to reciprocate with said shaft, a cutting tube carried by the head in position to be intersected by the orbit of the knife; the carriage being adjustable toward the line of feed to compensate for reduction in the diameter of the knife, and said cutting tube being -adjustably secured on the head so that it may remain in the line of feed notwithstanding the adjustment of the carriage.

13. In a severing device, a reciprocating shaft having continuing rotation in one direction, a knife carried thereby, a series of different sized axially elongated change gears adapted to be interchangeably carried by said shaft and partaking of its axial reciprocation, and an axially fixed gear meshing with and driving said reciprocating gear, and having adjustment to and from the axis of revolution of the shaft, to adapt it to different sizes of change gear on said shaft.

14. In a severing device, a reciprocating shaft having continuing rotation in one direction, a knife carried thereby, a series of different sized axially elongated change gears adapted to be interchangeably carried by said shaft and partaking of its axial reciprocation, and an axially fixed gear meshing with and driving said reciprocating gear, and having adjustment to and from the axis of revolution of the shaft, to adapt it to diiferent sizes of change gear on said shaft; said change gears having their peripheries constructed with a pitch in the direction of the axis of reciprocation, to main tain driving relation With the axially fixed gea during their reciprocation.

The foregoing specification signed at Cincinnati, Ohio, this 28th day of June, 1911.

RICHARD E. ROSEWARNE.

In presence of tWo Witnesses- E. F. DU BRUL, W. BEINHART.

Copies of this patent may be obtained for five cents each, by addressing the"0ommissioner of Patents,

Washington, I). G. 

